Application failing after updating to JBoss EAP 8 / Application Migration / Jakarta EE namespace

Issue

• Application failing after updating to JBoss EAP 8 / Application Migration / Jakarta EE namespace
• Application moved from EAP 7.4 to EAP 8.0 is failing with NoClassDefFoundError

java.lang.NoClassDefFoundError: Failed to link com/redhat/examples/Example (Module "deployment.example.war" from Service Module Loader): javax/servlet/http/HttpServlet

• IBM MQ rar failing to deploy in JBoss EAP 8.0

=> {"Operation step-2" => {"WFLYCTL0080: Failed services" => {"jboss.ra.deployer.\"wmq.jmsra.9.0.0.6.rar\"" => "WFLYJCA0046: Failed to start RA deployment [wmq.jmsra.9.0.0.6.rar]
    Caused by: org.jboss.jca.deployers.common.DeployException: IJ020056: Deployment failed: wmq.jmsra.9.0.0.6.rar
    Caused by: java.lang.NoClassDefFoundError: Failed to link com/ibm/mq/connector/ResourceAdapterImpl (Module \"deployment.wmq.jmsra.9.0.0.6.rar\" from Service Module Loader): javax/resource/spi/Resourc
eAdapter"}